Device for electrically checking printed circuit boards

Details Device for electrically checking printed circuit boards Device for electrically checking printed circuit boards

1986-09-02

1988-10-11

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Plural, automatically sequential tests

324158F, 324523, G01R 3102

Patent

active

047774320

ABSTRACT:
An apparatus for electrical function checking of wiring matrices includes a carrier plate having a plurality of gas discharge channels therein is put in place on a wiring matrix to be checked and selected test locations of the wiring matrix are ionically contacted through the gas discharge channels. Each gas discharge channel is equipped with at least two electrodes and is selectable in accordance with the coincidence principle by electrode bus bars that are preferably arranged in the form of rows so that a matrix addressing of selected test locations can be undertaken.

REFERENCES:
patent: 3800296 (1974-03-01), Weber
patent: 3946381 (1976-03-01), Johnson et al.
patent: 4047077 (1977-09-01), Veith
patent: 4066929 (1978-01-01), Okamoto et al.
patent: 4176297 (1979-11-01), Thistle et al.
patent: 4600878 (1986-07-01), Doemens et al.
H. Bohlen et al., "Tester for Electric Conductors", vol. 14, #5, IBM Technical Disclosure Bulletin (Oct. 1971) p. 1601.
H. J. Meixner "Federnde Prufspitzen-wichtiges Zubehor in . . . " Electronik Produktion & Pruftechnik (Nov. 1979), pp. 472-473.

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